AC Power Question

My situation is a 15yr old house governed by Canadian electrical code, which is for the most part consistent with the US NEC. The reason the builder used 14/3 for those branch circuits was purely economics based. In Canadian electrical code, a clothes washer circuit is only required to be 15 amp. Should it be on its own? - yes! Should it be 12/2 instead? - yes! But, the reality is this house was built in a large development project, and they didn’t do things to meet ideals, they based every decision on the bottom line. One fine day, I will get around to running a dedicated 12/2 for that clothes washer. As an intermediate stage, I removed the lighting circuit from the other leg of that 14/3 and put it on a dedicated 14/2, which has improved the lifespan of lightbulbs. 

I use Acoustic Revive EE 2.6 solid copper 10g. in wall cable to Furutech GTX R NCF outlets for the digital front end, preamp & amp each have there own seperate 8 g. solid core copper to Furutech GTX R NCF outlets, this is a huge improvement over standard Rominex 10g. stranded wire especially with the amp and preamp having there own separate dedicated lines.